Lili Reinhart flashes her toned abs in crop top with Katharine McPhee and Alessandra Ambrosio

Britney Spears shows off her toned midriff as she shares another clip dancing in crop top and shorts

Lupita Nyong'o is abs-olutely fabulous in wintry crop top at star-filled Neiman Marcus holiday party

Katharine McPhee flashes a hint of midriff in white outfit while at the Solaria Culture Exhibition